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Re:every character of snake's body has exactly two neighbour characters belonging to the same snake

Posted by TheBeet at 2007-10-24 19:29:54 on Problem 3434
In Reply To:这样的蛇一步移动以后是什么样子? Posted by:lunatic at 2007-10-24 19:28:18 
> aa.
> aaA
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